An integrated circuit has a multi-layer stack such as a gate stack or a digit line stack disposed on a layer comprising silicon. A camera-side control unit is disposed in the camera body and produces a control command. The apparatus may remind the user when the user is present at or near the apparatus, which may be detected through a motion or proximity sensor. A radio transmission part then transmits an OFDM symbol, in which the allocation information has been placed, to the mobile station from an antenna. Thereby, the evaluation logic is arranged on that side of the electrical isolation element which is towards the input-side terminals, and is supplied with voltage via the input-side terminals of the interface. In an alternative embodiment, which is well suited for toggle switch applications, a cover is provided for an electrical switch, wherein the cover comprises a handle cover assembly including a handle cover member sized and shaped to substantially conform to and fit over the switch handle and a face member in which the handle cover member is slidably disposed.